MLS head gaskets. Use new head bolts. Use new head bolts.
4.0L / 244 SOHC V6 12V "E,K" 100.40mm Bore 97-11
FORD
4.0L / 3996 SOHC V6 12V "E" Ford 100.40mm Bore 01-09
MAZDA
FO244TB | 4.0L / 244 SOHC V6 12V "E,K" 100.40mm Bore 97-11
FORD,
MERCURY
MA3996TA/FO | 4.0L / 3996 SOHC V6 12V "E" Ford 100.40mm Bore 01-09
MAZDA